Weather in Harness, IL
Harness, Friday, 9 October, 17:31
Clear. Feels like 78°. High 81°, low 55°.
Monthly outlook for Harness, IL: average high 71.5°, average low 52°. That is 3.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 12 October (87.5°), the coolest 18 October (33°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 72.4° | 65.8° | +3.7° |
| 19 October – 28 October | 69.9° | 61.4° | +4.7° |
| 29 October – 7 November | at normal | 57.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Broadwell (15 mi).
0
Harness, Saturday, 10 October
Overcast. High 79°, low 57°.
0Harness, Sunday, 11 October
Clear. High 80°, low 54°.
0
Harness, Monday, 12 October
Partly cloudy. High 87°, low 65°.
0
Harness, Tuesday, 13 October
Mostly clear. High 87°, low 73°.
0.15
Harness, Wednesday, 14 October
Rain. High 70°, low 64°.
0.17Harness, Thursday, 15 October
Light rain. High 78°, low 58°.
0Harness, Friday, 16 October
Partly cloudy. High 66°, low 49°.
0Harness, Saturday, 17 October
Overcast. High 45°, low 39°.
0Harness, Sunday, 18 October
Clear. High 52°, low 33°.
0Harness, Monday, 19 October
Overcast. High 59°, low 41°.
0Harness, Tuesday, 20 October
Clear. High 66°, low 44°.
0Harness, Wednesday, 21 October
Clear. High 70°, low 46°.
0Harness, Thursday, 22 October
Clear. High 73°, low 50°.
0Harness, Friday, 23 October
Clear. High 75°, low 52°.
0Harness, Saturday, 24 October
Clear. High 77°, low 55°.
0.15Harness, Sunday, 25 October
Climate normal for this date — 60-year average.
0.14Harness, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Harness, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Harness, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08Harness, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Harness, Friday, 30 October
Climate normal for this date — 60-year average.
0.19
Harness, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Harness, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Harness, Monday, 2 November
Climate normal for this date — 60-year average.
0.11Harness, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Harness, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Harness, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Harness, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Harness, Saturday, 7 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Harness, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Harness, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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